Salah Abdeslam, the fugitive terrorist who fled after last week's Paris massacre, fears he's being hunted by ISIS — the group responsible for the slaughter — because he didn't blow himself up like his fellow suicide belt-clad attackers.

But one of Abdeslam's friends said the fighter now fears reprisal from ISIS since he didn't "complete his task" and commit suicide by bomb, an act that would have made him a terrorist martyr and potentially have killed more victims, Belgium newsgroup Sudpressed.

People attend a meeting in front of a memorial set on the 'Capitole' place in Toulouse, southern France, Tuesday. (GUILLAUME HORCAJUELO/EPA)

"He told me he had gone too far. He was overwhelmed by what was happening," the friend said.

Abdeslam said he worried ISIS might go after his family, too.

On Tuesday, One of Abdeslam's brothers, Mohamed, pleaded for his criminal kin to turn himself in.

"The best would be for him to give himself up so that justice can shed all the light on this," he said on French TV.

Another Abdeslam brother, Ibrahim, died in the Paris attacks after he set off his own explosives belt outside a café. Six more terrorists died during the massacre, which targeted a soccer stadium, a music hall and a row of restaurants.

French police commandos pose with a bullet-hole riddled riot shield, which was used during the Paris terror attacks. (KENZO TRIBOUILLARD/AFP/Getty Images)